APA (7 वां संस्करण) प्रशस्ति पत्र

Riechel, R. (1989). Personnel needs and changing reference service. Library Professional Publications.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Riechel, Rosemarie. Personnel Needs and Changing Reference Service. Hamden, Conn.: Library Professional Publications, 1989.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Riechel, Rosemarie. Personnel Needs and Changing Reference Service. Library Professional Publications, 1989.

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